Kildeer Countryside School is one of four elementary schools that serve first- through fifth-graders in Buffalo Grove-based District 96. The school mascot is the cougar.
The school's attendance area includes parts of Buffalo Grove, Kildeer, Long Grove and Lake Zurich. Upon completion of fifth grade, Kildeer Countryside students attend sixth, seventh and eighth grade at Woodlawn Middle School.
Each August, the Kildeer Countryside PTO is a sponsor of the Long Grove Art Fair, which is held in historic Long Grove.